title: Intracanal placement of calcium hydroxide: a comparison of specially designed paste carrier technique with other techniques.
abstract: BACKGROUND
  This study compared the effectiveness of a Specially Designed Paste Carrier technique with the Syringe-Spreader technique and the Syringe-Lentulo spiral technique in the intracanal placement of calcium hydroxide.
  
  
  METHODS
  Three groups, each containing 15 single-rooted human anterior teeth were prepared using standardized Mtwo rotary instruments to a master apical file size 40 with 0.04 taper. Each group was filled with calcium hydroxide paste using: Syringe and #25 finger spreader (Group 1); Syringe and #4 rotary Lentulo spiral (Group 2), Specially Designed Paste Carrier (Group 3). Using pre-filling and post-filling radiographs in buccolingual and mesiodistal planes, the radiodensities at 1 mm, 3 mm, 5 mm, and 7 mm from the apical foramen were analyzed by ANOVA and Bonferroni post hoc tests.
  
  
  RESULTS
  Overall, The Specially Designed Paste Carrier technique showed a statistically significantly higher mean radiodensity than the two other compared techniques. No significant difference was detected between the Syringe-Lentulo spiral and the Syringe-Spreader techniques.
  
  
  CONCLUSIONS
  The Specially Designed Paste Carrier technique was more effective than the Syringe-Spreader technique and the Syringe-Lentulo spiral technique in the intracanal placement of calcium hydroxide.
authors.affiliation: Faculty of Dentistry, International Medical University, Bukit Jalil, Kuala Lumpur, 57000, Malaysia. abhishek_parolia@imu.edu.my.
authors.forename: Joseph Meng Ern
authors.initials: JM
authors.lastname: Tan
authors.forename: Abhishek
authors.initials: A
authors.lastname: Parolia
authors.forename: Allan Kah Heng
authors.initials: AK
authors.lastname: Pau
mesh_terms: D000704:Analysis of Variance; D002126:Calcium Hydroxide / Q000008:administration & dosage* / Q000627:therapeutic use; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging; D006801:Humans; D011859:Radiography; D012387:Root Canal Filling Materials / Q000627:therapeutic use*; D012389:Root Canal Obturation / Q000295:instrumentation* / Q000379:methods*; D018709:Statistics, Nonparametric
chemical_list: D012387:Root Canal Filling Materials; D002126:Calcium Hydroxide